Pencil-sharpener



(No Model.)

F. J. WALKER. PENCIL SHARPENER.

No. 484,071. Patented Oct. 11, 1892.

UNITED STATES PATENT OFFICE.

FREDERICK J. WALKER, OF MILTON, PENNSYLVANIA.

PENClL-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 484,071, dated October 11, 1892.

Application filed February 26 1892. Serial No. 422,853. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK J. WALKER, a citizen of the United States of America, residing in Milton, in the county of Northamberland and State of Pennsylvania, have invented a new and useful Pencil-Sharpener, of which the following is a specification.

My invention has relation to improvements in pencil-sharpeners of that class or style consisting of a tube fitted to the pencil and provided with a sharpener to point the pencil; and the object is to provide a simple and effective implement whereby the pencil may be readily and conveniently sharpened.

My invention consists in the novel con struction and combination of the parts, as will be hereinafter fully specified, and particularly as the same is distinctly pointed out in the claim.

In the accompanying drawings, Figure 1 is a view showing the sharpener fitted to a pencil with the sharpener turned back, with the chisel resting in the recess of the tube. Fig. 2Iis a similar view showing the chisel turned into position for sharpening the pencil. Fig. 3 is a view showing the sharpener in side view with the blade engaging the point of the pencil and the reverse position shown in dotted lines. Fig. 4 is a view showing the chisel connected to a split tube.

A designates a pencil of the usual round style.

B designates a tube of any suitable character. This tube is made of metal and fitted to the pencil, so that it may be readily moved back and forth in the direction of the length of the pencil by manipulation. The tube may be split longitudinally and have its sides milled or roughened to afford a convenient finger-grip when the operation of sharpening is effected. In the tube is formed an aperture l in the form of a notch, as shown in Fig. 3 of the drawings. The end of the chisel sets in this notch and bears on the surface of the pencil with sufficient force to keep the tube at any position to which it maybe moved when the chisel is turned in position with the blade not in use. The sharp or cutting edge of the chisel is concealed in this notch at the end to prevent the chisel from cutting or wearing the pocket or from otherwise interfering with the use of the pencil. In the tube is fixed a stud 2, serving as a pivot-pin for the shank of the chisel.

O designates the chisel, having a shank 3 pivoted on the stud 2 to turn on a plane parallel with the tube, as indicated in dotted lines in Fig. 1 of the drawings. The chisel part 4 is bent slightly down from the shank at an angle substantially conforming to the plane of the point to be made on the pencil, as seen best in Fig. 3 of the drawings. The chisel is tapered or beveled at the end to form a sharp cutting-edge by which the wood of the pencil is shaved down and the graphite or composition shaped toa point. The chisel is mounted on its pivot, so as to give it a slight spring so as to vary the angle of cutting by pressure on the shank.

The operation is as follows: The tube is, as specified, easily shifted up and down and ro tatable on the pencil, and when the pencil requires sharpening the tube is pushed down to the desired point or place on the pencilstock and the chisel swung round on the pivot until again parallel with the pencil, when by pressure on the shank of the chisel the cutting-edge is brought down on the material to be cut, and then by reciprocating the tube with the chisel held down on the material the wood is cut and the point made. After the point has been thus made the chisel is turned around until the cutting-edge rests in the notch of the tube, where it remains until it is again to be used. The tube is of course, as stated, not only adapted to be shifted up and down on the pencil-stock, but it is also turnable about the pencil, so as to make atapering circular point.-

Having thus described my invention, stated its operation and uses, I now proceed to particularly point out and distinctly specify what I claim and desire to secure by Letters Patent, as follows:

A pencil-sharpener comprised of the tube B, formed with an aperture 1 to receive the end of the sharpener and a pivot 2, and a chisel having its shank pivoted on the pivot 2 to turn on a plane parallel with the face of the tube and having its chisel bent down at an incline from the shank to make the point, substantially as described.

In witness whereof I have hereto set my hand in the presence of two attesting witnesses.

FREDK. J. WALKER.

Attest:

BENJ. M. STANLEY, H. E. ANGSTADT. 

